I have a Quaker parrot who is about 4 years old ( give or take a year ), I have only had her with me for little over a year, she came from a very abusive him where the guy would cut her wings to close making them bleed, hit her in the head which broke the tip of her beak, yell at her and so on... now she totally HATES ALL MEN even my hubby who has tried for a year to make friends but after getting bite several times they have come to a truss he leaves her alone she stops biting him !! The problem I am having with her is she has begun biting herself she will grab the top part of wing ( i guess the shoulder area ) hold on and make all kinds of noise twist her body around like she is fighting with it - she has not hurt herself - no blood or anything not pulling out feathers or any thing like that, she does not do it all the time once in awhile. she has a huge parrot cage, toys,plenty of food,water - and is let out of cage to play what could make her do this??